meta is Stata's new command for performing meta-analysis.
meta has subcommands. We have typed meta, and now
we have a scrollable list of the subcommands from which we can choose.
Or we can ignore the list and continue typing.

Autocompletion did not wait until we had typed meta to show
us the choices. It knows about all 900+ Stata commands! Once we
had typed the first two letters, it showed a list of the 29 commands
that start with me. After we typed the t, the list
was shortened to the 13 that start with met.
Right now, we are at the point of looking at the 12 that start with
meta.

Eventually, we will finish writing our do-file. Then we can click on
the appropriate button on the toolbar and run it. If it does not work,
we can fix the file, and click to run again.